There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

Our product and our sum always give the same answer. Who are we?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.

What has 88 keys?

What is so fragile that saying its name breaks it?

I always drive my customer away.

Who am I?

Suppose you are sitting in an interview and the interviewee asks you an aptitude question.

You have three buckets with a capacity of 4 litres, 8 litres and 10 litres and you have a large tank of water. Now you have to measure 3 litres of water precisely using those buckets. How will you do it?